Aero Engine Teaching Experiment Visual Simulation System

Practice teaching plays a very important role in comprehending and mastering theory knowledges, however, it can't satisfy students' practice requirement and improve teaching qulity because of out-of-date instructional instruments and expensive experiment fund in aircraft major. With the development of computer, Virtual Reality is to be used widely in education region. Virtual reality turns 2-D teaching environment into interactive and realistic 3-D teaching environment, so that it contributes the study activation and hands-on capacity of students.The investigated subject presented herein focuses primarily on teaching and experiment, and scene simulation system of aero-engine teaching experiments are set up. Particular analyses of this system are completed from the structure and aerodynamic characteristic, so that three-dimensional virutal aero-engine laboratory could be built, and many experiments teaching will be performed, such as, the virtual assembly of engine, the experiment simulation of test bay, the simulating of engine working and the experiment simulation of flow field, etc .The ability of scene simulation in the aero-engine experimental laboratory is carried out by the three dimension dynamic model building and scene simulation driver, which is the core technique of scene simulation based on MultiGen Creator/Vega; the interactive function which completing descerption and assemblage of aero-engine model is performed by the virtual hand based on the data gloves and collision detection, showing the strong characteristic on the interaction of Virtual Reality; the principle of the stereo-vision is introduced and the large screen adopting the polarization is put forward, which supply the hardware platform for the visual immersion of the Virtual Reality; the principle of streamline's generation is analyzed, the visual method for the pathline of the fluid material partical using the line element method is presented. The paper develops successful simulation system for the instructional laboratory system on the aero-engine, based on the demonstration detailed illuminated above and the principles of the aero-engine, as well as the firing test data.